ROBATIC, ROBA -quick ROBA -takt
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- Melvyn Hudson
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1 ROBATIC, ROBA -quick ROBA -takt Electromagnetic Clutches and Brakes, Clutch Brake Units High torque capacity Low wear Compact construction Easy assembly and maintenance K.500.V09.GB your reliable partner
2 Largest variety in selection of standard products Market leader s competence arising from decades of experience in the development, production and application of power transmission products Optimum product selection due to our expertise in design and calculation Reliable component dimensioning Intelligent platform (modular construction) High flexibility for individual requests and customer-tailored solutions Quality-inspected suppliers Modern, highly robust materials In-house production 00 % quality control your reliable partner What is your definition of reliability? We define reliability as the highest product quality and competent service from the initial contact right up to the after-sale service Certified according to DIN EN ISO 900:2000 Personal supervision from the first contact right up to the after-sale service Worldwide local service network CAD-files available online to save time and costs during construction 24-hour delivery service for preferred products Short delivery times and on-time delivery Unlimited replacement part availability worldwide
3 Your advantages when using electromagnetic ROBATIC -clutches, ROBA -quick brakes and ROBA -takt clutch brake units Easy integration into your machine: The optimised magnetic circuit minimises the magnetic leakage flux. The high power density and torque security based on it allow compact dimensions and an easy integration in your construction. High reliability and operational safety: The switching behaviour is constant during the entire service lifetime. Therefore, the positioning accuracy and reliability of the clutches or brakes respectively and herewith the operational security of your machine are increased. Less operating expenses and maintenance charges: The large friction surface and the smooth switching behaviour increase the wear resistance. Therefore, the clutches and brakes are maintenance-free until the friction surfaces are worn down. There is no re-adjustment work and the resulting operational interruptions. Therefore, the operating expenses and maintenance charges are very low. Increase of productivity: Short switching times allow high switching frequencies and increase the productivity of your machine. Total Quality Management Product Quality Every delivery which leaves our firm has been subjected to a careful quality inspection, meaning that you are able to rely 00 % on mayr products. If required, we pre-adjust our clutches and brakes accurately to the requested values and confirm the product characteristics with an Inspection Report. Quality Management mayr uses the term quality to describe its products and services. Certification of our quality management confirms the qualityconsciousness of our colleagues at every level of the company. Our integrated management system is certified according to DIN EN ISO 900:2000 (Quality) and DIN EN ISO 400 (Environment) and complies with the OHSAS 800/OHRIS (Occupational Health and Safety) demands. All products are subject to comprehensive inspections and tests regarding loads. Only after having passed the strongest long-time tests and when they fully meet all the technical requirements and proof their reliability they are included in our delivery programme. Please Observe: According to german notation, decimal points in this document are represented with a comma (e.g. 0,5 instead of 0.5).
4 Electromagnetic Clutches and Brakes Guidelines Description and Operating Conditions. The catalogue values, in particular the values for the nominal torque, are reference values and may deviate in individual cases. 2. During dimensioning, please contact the manufacturers for consultation on installation conditions, torque fluctuations, permitted friction work, run-in behaviour, wear and ambient conditions. 3. The clutches and brakes are designed for dry running. If the friction surfaces come into contact with oil, grease or similar substances, there may be a severe decrease in torque. 4. When the devices are switched off, voltage peaks may occur due to the counter-induction on the magnetic coils, causing in extreme cases damage to the magnetic coil and therefore to the components. For this reason, excess voltage must be damped using a suitable protective circuit (e.g. using a varistor). 5. The surfaces on the clutches and the brakes are corrosionprotected except for the friction surfaces. However, in operation in extreme ambient conditions or in outdoor conditions with direct weather influences, additional protective measures are necessary. 6. The connection cable or connection strands on the clutches and brakes have a surface coating which is not resistant against all influences. After contact with chemical substances, please check compatibility. 7. The clutches and brakes are designed for a relative duty cycle of 00 %. Torque Characteristics In new condition, c. 50 % of the catalogue nominal torque (M 2 ) is transmitted. The components reach the catalogue nominal torque when the friction surfaces are run in. As a rough guideline value, c switchings in dynamic operation, a typical speed (c. 50 to 000 rpm) and a medium friction work (see Table ) can be given. Longer slipping of the clutch or brake is to be avoided, especially at low speeds, as this can cause scoring formation and therefore damage to the friction surfaces. Clutches or brakes used in static or virtually static operation do not reach the nominal torque (M 2 ). If requested, the clutches or brakes can also be run in at the place of manufacture. This is most expedient for Type with complete bearing. However, Types 500. and 520. can also be run in under certain conditions. For this, please ensure exact installation customer-side according to the regulations in order to reproduce the friction conditions as precisely as possible. At the same time, the friction carbon produced must not be rubbed off. If the clutch is run in to the nominal torque at the place of manufacture and then operated in static or virtually static mode, please allow for a drop to c % of the nominal torque. This is the case if the clutch or brake falls below the speed or friction work (Q a ) stated in Table. For static and virtually static applications, we therefore recommend our double-flow designs construction series (see pages 2/3). Friction work Q a [J] Clutch or brake speed n min. [rpm] Run-in Conditions For running in, different procedures can be used according to the Type design. An artificial run-in is to be carried out if a run-in procedure is not possible in the machine due to the type of application (see section Torque Characteristics ), e.g. due to insufficient friction work, speed or switching frequencies. For the run-in conditions of the individual clutch and brake types, please see the respective Installation and Operational Instructions on our website Electrical Connection and Wiring DC current is necessary for the operation of the brake. The coil voltage is indicated on the Type tag as well as on the brake body and is designed according to the DIN IEC (± 0 % tolerance). Operation is possible both via alternating voltage in connection with a rectifier or with another suitable DC supply. Dependent on the brake equipment, the connection possibilities can vary. Please follow the exact connections according to the Wiring Diagram. The manufacturer and the user must observe the applicable directives and standards (e.g. DIN EN and DIN VDE 0580). Their observance must be guaranteed and double-checked. Electrical Wiring 24 VDC and 04 VDC can be selected as standard voltages. 24 VDC: Operation with a power supply unit of 24 VDC 04 VDC: Half-wave recifier with 230 VAC mains voltages Earthing Connection The brake is designed for Protection Class I. This protection covers not only the basic insulation but also the connection of all conductive parts to the PE conductor on the fixed installation. If the basic insulation fails, no contact voltage will remain. Please carry out a standardized inspection of the PE conductor connections to all contactable metal parts. Device Fuses To protect against damage from short circuits, please add suitable device fuses to the mains cable. Protection Circuit When using DC-side switching, the coil must be protected by a suitable protective circuit according to VDE This is achieved by using a sufficiently dimensioned varistor, which has already been integrated into the mayr rectifier. To protect the switching contact from consumption when using DCside switching, additional protective measures may be necessary (e.g. series connection of switching contacts). The switching contacts used should have a minimum contact opening of 3 mm and should be suitable for inductive load switching. Please make sure on selection that the rated voltage and the rated operation current are sufficient. Depending on the application, the switching contact can also be protected by other protective circuits (e.g. mayr spark quenching units), although this may of course then alter the switching times. 4 Table
5 Electromagnetic Clutches and Brakes Table of Contents Page ROBATIC Electromagnetic, energise to engage pole face clutches ROBA -quick Electromagnetic, energise to engage pole face brakes ROBATIC Description 6 Summary of structural designs 7 Data sheets ROBATIC -standard s ROBATIC -standard s ROBATIC double-flow design s ROBATIC small mounting diameter s ROBATIC small mounting diameter s ROBATIC with bearing-supported coil carrier s ROBATIC with bearing-supported flange s Technical explanations Electronic accessories ROBA -quick Description 28 Summary of structural designs 29 Data sheets ROBA -quick standard s ROBA -quick standard s ROBA -quick small mounting diameter s Technical explanations Electronic accessories 40 4 ROBA -takt clutch brake module Clutch-brake unit ROBA -takt clutch brake module Description 42 Summary of structural designs 43 Data sheets ROBA -takt 44 5 Technical explanations Electronic accessories
6 ROBATIC -electromagnetic clutch Constant switching performance throughout the entire service lifetime High torque security due to an optimised magnetic circuit and the new design of the ROBATIC -clutch. Therefore, higher capacities due to less magnetic leakage flux. Half the wear due to large friction surfaces and smooth switching behaviour, the ROBATIC -clutch has a higher wear resistance (approx. 00 %). Large internal diameters of the magnetic coil bodies therefore large permitted shaft diameters Low noise Short switching times/high switching frequencies Correct function up to wear limit wear, air gap max. adjusting interval conventional electromagnetic clutches number of switchings Functional principle ROBATIC -clutches are energise to engage, electromagnetic pole face units. When DC voltage is applied to the magnetic coil (), a magnetic field is build up, the armature disk (3) is attracted to the rotor (2) and the friction lining (4). The torque is transmitted via friction locking. The torque is transmitted from the drive element (6) via the armature disk (3) and the rotor (2) to the output shaft (7). After having de-energised the coil, the membrane spring (5) draws back the armature disk (3) to the drive element (e.g. belt pulley), and the torque transmission is then disconnected. wear, air gap max. ROBATIC adjusting interval number of switchings
7 ROBATIC -electromagnetic clutch Summary of structural designs ROBATIC ROBATIC -standard s 3 to 9 Type 500. _._ s 3 to 7 Type _.0 s 8 to 9 Type 500. without accessories Type flange hub Type without accessories Type 500.0_ flange hub Type 500._ Pages 8 ROBATIC double-flow design s 3 to 7 Type _ without accessories Type flange hub Type Pages 2 3 ROBATIC small mounting diameter s 3 to 7 Type 500.2_.0 s 8 to 9 Type 580._0 with small bolt circle without accessories Type flange hub Type without accessories Type flange hub Type Pages 4 7 ROBATIC with bearing-supported coil carrier s 3 to 9 Type 540. without accessories Type 540.0_ flange hub Type 540._ Pages 8 9 ROBATIC with bearing-supported flange s 3 to 9 Type 540.4_ Type 540.4_ Pages
8 ROBATIC -electromagnetic clutch Standard s 3 7 Type _.0 L O l L a L 2 l2 ØH ØM ØZ Øs l køk Ød ØG ØM ØD ØD W Ød Øg ØD 2 z Øs V V strand length: 400 mm; 45 offset to screw-on bores b t t Type Standard Type Standard with flange hub Order Number / / / / / s 3 to 7 without accessories flange hub 0 Coil voltage [VDC] Rotor bore Ø d H7 Flange hub bore Ø d H7 Keyway acc. DIN 6885/ or DIN 6885/3 Example: 6 / / 24 / 35 / 40 / DIN 6885/ 8
9 ROBATIC -electromagnetic clutch Standard s 3 7 Type _.0 Technical Data Nominal torque ) Type _.0 M 2 [Nm] Electrical power P 20 [W] Maximum speed n max [rpm] Weight Mass moment of inertia without accessories m [kg] 0,68 2,5 3,48 6,6 with flange hub m [kg] 0,75,3 2,35 4,03 7,5 Rotor 2) I own [0-4 kgm 2 ] 2 5,4 3,25 29,85 86,75 Armature disk I own [0-4 kgm 2 ] 0,76,92 6,86 7,56 52,86 Flange hub 2) + Armature disk I own [0-4 kgm 2 ],02 2,75 8,63 24,66 70,63 ) Please observe run-in regulations or minimum speed (see page 4). 2) With max. bore Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores Ød H7 min. [mm] Preferred bores [mm] 0; 5 7; 20 20; 25; 30 25; 30; 35 30; 40; 50 Ød H7 max. [mm] Preferred bores [mm] 7; 20 20; 25 25; 30 30; 40 40; 50 3) Up to Ø 32 keyway acc. DIN 6885/, above Ø 32 keyway acc. DIN 6885/3 min. [mm] max. [mm] ) [mm] a 0,2 0,2 0,2 0,3 0,3 b 4,5 4 5,5 5,5 7,5 D 73, D D G , g 29, H h K 3 x 4,6 3 x 6,4 3 x 7,0 3 x 0,4 3 x 0,2 k,7,7 2,5 2,8 2,7 L 28, 3,2 36,0 40,8 46, L 24 26, ,5 37,5 L l 20, ,5 3,5 [mm] Permitted shaft misalignm. and centre offset l 3,5 4,3 5,2 6 7 l M M O 48, 53,2 64, 72,9 82,2 s 4 x 4,8 4 x 5,7 4 x 6,8 4 x 6,8 4 x 9,2 s 3 x M4 3 x M5 3 x M6 3 x M8 3 x M8 t 3,9 4,5 5,8 7,0 8,3 t 5,2 7,2 8,7 8,0 9,7 V 0,05 0,05 0,05 0,05 0, V 0, 0,5 0,5 0,5 0,2 W Z H z 3,5 4, We reserve the right to make dimensional and constructional alterations. 9
10 L l b a t Øs z l ØH ØM ØZ ØN ØF Ød ØG ØM ØD ØD 90 º Øs Øs ROBATIC -electromagnetic clutch Standard s 8 9 Type 500. strand length: 400 mm; 45 offset to screw-on bores O L 2 l2 W Ød Øg ØD 2 V 45 º ØK V V l 4 Øs k i t Type Standard with connection strand ØM Type Standard with flange hub with connection strand 45 º Øs Ød ØK ØG ØM ØD ØD 90 º Type 500._2 Standard with connecting terminal ØM Order Number without accessories flange hub 0 / / / / / 8 9 connection strand connecting terminal 0 2 Coil voltage [VDC] Rotor bore 3) Ø d H7 Flange hub bore Ø d H7 Keyway acc. DIN 6885/ or DIN 6885/3 0 Example: 8 / / 24 / 40 / DIN 6885/
11 ROBATIC -electromagnetic clutch Standard s 8 9 Type 500. Technical Data 8 9 Nominal torque ) Type 500. M 2 [Nm] Electrical power P 20 [W] 6 82 Maximum speed n max [rpm] Weight Mass moment of inertia without accessories m [kg] 0, 20,5 with flange hub m [kg] 3 25 Rotor 2) I own [0-4 kgm 2 ] Armature disk I own [0-4 kgm 2 ] 8 35 Flange hub 2) + Armature disk I own [0-4 kgm 2 ] ) Please observe run-in regulations or minimum speed (see page 4). 2) With max. bore Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores 8 9 Ød H7 min. [mm] Preferred bores [mm] 40; 50; 60 50; 60; 70 Ød H7 max. [mm] Preferred bores [mm] 40; 50 50; 60 min. [mm] max. [mm] [mm] 8 9 a 0,5 0,5 b 8 9 D D D F 3) - - G 9 g H h i 8 9,5 K 3 x 4 x 20 k 2 4,2 L 55, 63,9 L 2 45,3 53,9 l 44 5 l ) Turning for RS-ball bearing according to order regulations no turning is allowed for in the standard range. [mm] Permitted shaft misalignm. and centre offset 8 9 l 2 36,3 42,9 l M M N 93,9 6,8 O 00,4 7,8 s 4 x 9 4 x s 3 x M0 4 x M2 t 0,6 2,4 t 8,5,8 V 0, 0, V 0,2 0,25 W 5 20 Z H z 4 4 We reserve the right to make dimensional and constructional alterations.
12 ROBATIC -electromagnetic clutch Double-flow design s 3 7 Type _.0 strand length: 400 mm; 45º offset to screw-on bores l L b a t k O L 2 l 2 ØH ØM ØZ Øs ØF l z Ød ØG ØK ØM ØD ØD W Ød Øg ØD 2 V Øs V L t Type Double-flow design Type Double-flow design with flange hub Performance Characteristics Preferred for static or virtually static applications High torque security with low friction work No organic friction lining installed (environmentally friendly) Order Number / / / / / s 3 to 7 without accessories flange hub 0 Coil voltage [VDC] Rotor bore Ø d H7 Flange hub bore Ø d H7 Keyway acc. DIN 6885/ Example: 6 / / 24 / 35 / 40 / DIN 6885/ 2
13 ROBATIC -electromagnetic clutch Double-flow design s 3 7 Type _.0 Technical Data Nominal torque ) 2) (+50% /-2%) Type _.0 M 2 [Nm] Electrical power P 20 [W] Maximum speed 3) n max [rpm] Weight Mass moment of inertia without accessories m [kg] 0,65,6 2,02 3,3 6,22 with flange hub m [kg] 0,76,5 2,53 4,46 8,09 Rotor 4) I own [0-4 kgm 2 ] 2,02 5,56 4,08 32,26 06,36 Armature disk I own [0-4 kgm 2 ],08 2,69 7,34 9,92 6,57 Flange hub 4) + Armature disk I own [0-4 kgm 2 ],46 3,98 0,26 30,43 89,0 ) Please observe run-in regulations or minimum speed (see page 4). 2) During permanent synchronisation without friction work, the torque may drop to 50 % - 60 % of the nominal torque. 3) Max. switching speed is dependent on friction work and switching frequency - if necessary, please contact the manufacturer. 4) With max. bore Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores Ød H7 min. 5) [mm] Preferred bores [mm] 5, 20 20, 25, 28 30, 35, 40 45, 50 55, 60 Ød H7 max. [mm] Preferred bores [mm] 5, 7, 20 20, 25, 28 25, 30 35, 40, 45 50, 55, 60 min. 5) [mm] max. [mm] ) For torques smaller than the nominal torque M 2, bores below d min are possible on request. [mm] a 0,2 0,2 0,2 0,3 0,3 b 4,5 4 5,5 5,5 7,5 D , D D F 6) G g 29, H h K 3x8 3x0 3x2 3x6 3x4 k 3,2 3,8 4,3 6 4,4 L 28, 3,25 35,7 40,7 46, L 23,5 26, ,5 37,5 L I ,5 3,5 6) Turning for RS-ball bearing according to order regulations no turning is allowed for in the standard range. [mm] Permitted shaft misalignm. and centre offset I 3,5 4,3 5,2 6 7 I M M O 48, 53,25 63,7 72,7 82,2 s 4x4,8 4x5,7 4x6,8 4x6,8 4x9,2 s 3xM4 3xM5 3xM6 3xM8 3xM8 t 4,3 4,45 5,5 6,9 8,3 t 5 7,2 8,7 4 3,7 V 0,05 0,05 0,05 0,05 0, V 0, 0,5 0,5 0,5 0,2 W Z H z 3,5 4, We reserve the right to make dimensional and constructional alterations. For detailed information, please see our brochure P.500.V._GB 3
14 ROBATIC -electromagnetic clutch Small mounting diameter s 3 7 Type 500.2_.0 L O l L a L 2 l2 ØH ØM ØZ Øs z l køk Ød ØG ØM ØD ØD W Ød Øg ØD 2 V Øs V strand length: 400 mm; 45 offset to screw-on bores b t t Type Small mounting diameter Type Small mounting diameter with flange hub Order Number / / / / / s 3 to 7 without accessories flange hub 0 Coil voltage [VDC] Rotor bore Ø d H7 Flange hub bore Ø d H7 Keyway acc. DIN 6885/ or DIN 6885/3 Example: 6 / / 24 / 40 / 30 / DIN 6885/ 4
15 ROBATIC -electromagnetic clutch Small mounting diameter s 3 7 Type 500.2_.0 Technical Data Nominal torque ) Type 500.2_.0 M 2 [Nm] Electrical power P 20 [W] Maximum speed n max [rpm] Weight Mass moment of inertia without accessories m [kg] 0,65, 2, 3,4 6,4 with flange hub m [kg] 0,7,6 2,25 3,6 6,95 Rotor 2) I own [0-4 kgm 2 ] 2,2 5,3 3,47 32,3 90,3 Armature disk I own [0-4 kgm 2 ] 0,7,79 6,28 5,77 48, Flange hub 2) + Armature disk I own [0-4 kgm 2 ] 0,8,97 7,9 7,45 55,2 ) Please observe run-in regulations or minimum speed (see page 4). 2) With max. bore Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores Ød H7 min. [mm] Preferred bores [mm] 0; 5 7; 20 20; 25; 30 25; 30; 35 30; 40; 50 Ød H7 max. [mm] Preferred bores [mm] 0; 5 7; 20 20; 25 25; 30 30; 40 3) Up to Ø 32 keyway acc. DIN 6885/, above Ø 32 keyway acc. DIN 6885/3 min. [mm] max. [mm] ) 45 [mm] a 0,2 0,2 0,2 0,3 0,3 b 4,5 4 5,5 5,5 7,5 D 73, D D G , g 27 29, H h K 3 x 4,3 3 x 4,6 3 x 6,4 3 x 7 3 x 0,4 k,5,7,5 2,2 2,7 L 28, 3, 36,0 40,4 45,8 L 24 26, ,5 37,5 L l [mm] Permitted shaft misalignm. and centre offset l 3,5 4,3 5,2 6 7 l 2, M M O 43, 5, 58, 68,8 77,9 s 4 x 4,5 4 x 5,7 4 x 6,8 4 x 6,8 4 x 9,2 s 3 x M3 3 x M4 3 x M5 3 x M6 3 x M8 t 3,9 4,4 5,8 6,6 8,0 t 4, 5,2 6,7 8,7 8,0 V 0,05 0,05 0,05 0,05 0, V 0, 0,5 0,5 0,5 0,2 W Z H z 2 2,5 3 3,5 3,5 We reserve the right to make dimensional and constructional alterations. 5
16 l L t O a L 2 l2 ROBATIC -electromagnetic clutch Small mounting diameter s 8 9 Øs W Type 580._0 L L t t O ØM 2 ØZ ØN ØF z l l a l Ød a ØG ØM ØD ØD Ød L 2 l2 Øg ØD 2 strand length: 400 mm ØS ØS ØK Øs Øs V W B k ØM 2 ØZ V ØN ØM 2 ØF ØZ z l z l t ØN ØF Ød ØG ØM Ød ØD ØG ØD ØM ØD ØD Ød Øg ØD 2 ØS ØS ØS ØS ØK ØK V B B k k V V t t Type Coil carrier with small bolt circle Type Coil carrier with small bolt circle and flange hub Bore for screws DIN 692, 7984 with spring ring DIN 7980 Order Number / / / / / 8 9 without accessories flange hub 0 Coil voltage [VDC] Rotor bore Ø d H7 Flange hub bore Ø d H7 Keyway acc. DIN 6885/ or DIN 6885/3 Example: 8 / / 24 / 40 / 40 / DIN 6885/ 6
17 ROBATIC -electromagnetic clutch Small mounting diameter s 8 9 Type 580._0 Technical Data 8 9 Nominal torque ) Type 580._0 M 2 [Nm] Electrical power P 20 [W] Maximum speed n max [rpm] Weight Mass moment of inertia without accessories m [kg] 0, 20,5 with flange hub m [kg] 3 23,5 Rotor 2) I own [0-4 kgm 2 ] Armature disk I own [0-4 kgm 2 ] 8 35 Flange hub 2) + Armature disk I own [0-4 kgm 2 ] ) Please observe run-in regulations or minimum speed (see page 4). 2) With max. bore Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores 8 9 Ød H7 min. [mm] Preferred bores [mm] 40; 50; 60 50; 60; 70 Ød H7 max. [mm] Preferred bores [mm] 40; 50 50; 60 min. [mm] max. [mm] [mm] 8 9 a 0,5 0,5 B 3 3 D D D F 3) - - G 9 g H h i 8 9,5 K 3 x 4 x 20 k 2 4,2 L 55, 63,9 L 2 45,3 53,9 l 44 5 l ) Turning for RS-ball bearing according to order regulations no turning is allowed for in the standard range. [mm] Permitted shaft misalignm. and centre offset 8 9 t 0,6 2,4 l 2 36,3 42,9 M M N 93,9 6,8 O 00,4 7,8 S 3,5 3,5 S 3 x 8,4 3 x 8,4 s 3 x M0 4 x M2 t 8,5,8 V 0, 0, V 0,2 0,25 W 5 20 Z H z 4 4 We reserve the right to make dimensional and constructional alterations. 7
18 ROBATIC -electromagnetic clutch With bearing-supported coil carrier s 3 9 Type 540. strand length: 400 mm; 45º offset to screw-on bores n O L a k O L 2 l2 W l 6 Øs ØP Øp Ød 2 ØG ØM ØD ØD Ød Øg ØD 2 ØK V t t Type With bearing-supported coil carrier Type With bearing-supported coil carrier and flange hub O n L a k 5 Y Y 3 U u Keyway for friction support ØK l 6 Øp Ød 2 ØG ØM ØD ØD Type 540._2 With connecting terminal Order Number Øs without accessories flange hub 0 V t t / / / / / s 3 to 9 connecting strand connecting terminal 0 2 Coil voltage [VDC] Rotor bore Ø d 2 Keyway acc. DIN 6885/ or DIN 6885/3 Flange hub bore Ø d 8 Example: 5 / / 24 / 20 / DIN 6885/
19 ROBATIC -electromagnetic clutch With bearing-supported coil carrier s 3 9 Type 540. Technical Data 8 9 Nominal torque ) Type 540. M 2 [Nm] Electrical power P 20 [W] Maximum speed n max [rpm] Weight Mass moment of inertia without accessories m [kg] 0,73,22,85 3,6 5,54,6 22,2 with flange hub m [kg] 0,78,29 2,0 3,38 6, 2,86 23,93 Rotor 2) I own [0-4 kgm 2 ],37 3,35 9,36 20,8 54, Armature disk I own [0-4 kgm 2 ] 0,35,05 2,97 7, Flange hub 2) + Armature disk I own [0-4 kgm 2 ] 0,5,5 4,5 0,9 37, ) Please observe run-in regulations or minimum speed (see page 4). 2) With max. bore Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores 8 9 Preferred bores [mm] 0; 5 7; 20 20; 25; 30 20; 25; 30 25; 30; 40 40; 45; 50 40; 50; 60 Ød H7 2 min. [mm] Ød H7 max. [mm] 20 3) 25 3) Preferred bores [mm] 0; 5 7; 20 20; 25 25; 30 30; 40 40; 50 50; 60 3) With max. bore keyway to DIN 6885/3 4) Up to Ø 32 keyway acc. DIN 6885/, above Ø 32 keyway acc. DIN 6885/3 min. [mm] max. [mm] ) [mm] 8 9 a 0,2 0,2 0,2 0,3 0,3 0,5 0,5 D 64,5 8, D D G 29,5 30,5 45, g 27 29, K 3 x 4,3 3 x 4,6 3 x 5,8 3 x 7 3 x 9,4 3 x,5 4 x 20 k 0,8,7,0,0 2,0 2,0 4,2 L ,9 40,5 46,5 55,4 63,9 L , ,3 53,9 l 2, ,5 3 36,3 42,9 l , , M n , ,5 [mm] 8 9 O ,9 9,5 08,5 30,4 47,8 O ,9 62,0 70,5 85, 93,9 P 70 79,7 98,2 5,4 50,4 89,4 235,8 p s Permitted shaft misalignment 3 x M3 3 x M4 3 x M5 3 x M6 3 x M8 3 x M0 3 x M2 t 3,8 4,3 5,7 6,7 8,7 0,6 2,4 t 4, 5,0 6,9 6,7 8,2 8,5,8 U u 2 2,5 2,5 2,5 3 4,5 6 V 0,05 0,05 0,05 0,05 0, 0, 0, W Y [ ] Y [ ] ,5 22, We reserve the right to make dimensional and constructional alterations. 9
20 With bearing-supported flange ) s 3 9 Y 2 n 3 n L a L 7 l 8 W ROBATIC -electromagnetic clutch Type 540.4_ ØD ØP O 5 n Ln n 3 L a L 7 L 7 l 8 W W ØD ØP ØD Øp ØP Ød 3 Øp Ød 3 AS O 5 AÜ Øs 2 Øs 2 x x 3x20º Y 2 Øp strand length: 400 mm; 45º offset to screw-on l bores 3 Ød 3 n 3 a l 8 Ød 4 Øe ØM 3 ØD 3 Keyway for key x O 5 Ød 4 Øe Ød ØM 4 3 Øe ØD 3 ØM 3 ØD 3 l 3 l 3 Øs 2 x 3x20º Keyway for friction support Y Type With bearing-supported flange U u Y U u Order Number / / / / / s 3 to 9 connecting strand connecting terminal 0 2 Coil voltage [VDC] Hub bore Ø d 4 Keyway acc. DIN 6885/ or DIN 6885/3 AS AÜ Counterbore: coil carrier side transmission flange side Example: 5 / / 24 / 24 / 6885/ / AS 20
21 ROBATIC -electromagnetic clutch With bearing-supported flange ) s 3 9 Type 540.4_ Technical Data *) 8 *) 9 *) Nominal torque 2) Type 540.4_ M 2 [Nm] Electrical power P 20 [W] Maximum speed n max [rpm] Weight with max. bore m [kg],2,85 2,95 4,7 8,25 6,6 29,2 Mass moment of inertia Rotor (max. bore) I own [0-4 kgm 2 ],59 3,82 0,24 23,22 52,05 97, Armature disk + driver flange I own [0-4 kgm 2 ],97 4,06 9,95 22,93 50,53 47,83 533,7 ) 2-shaft connection on request 2) Please observe run-in regulations or minimum speed (see page 4). *) From 7 on, the installation of a key in the driver flange is necessary in order to ensure torque transmission. Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores 8 9 Ød 4 maximum [mm] 5 9 3) Ød 3 [mm] ) ) ) / 5) _ 8) 37 6) 47 7) 59 8) 47 9) 67 8) _ 0) 3) Above Ø 8 keyway to DIN 6885/3 with d 4 max depth of hub keyway,2 +0, 4) above Ø d 4 to 9 5) above Ø d 4 over 9 6) above Ø d 4 to 28 7) above Ø d 4 over 28 8) above Ø d 4 over 38 9) above Ø d 4 to 38 0) above Ø d 4 over 55 [mm] 8 9 a 0,2 0,2 0,2 0,3 0,3 0,5 0,5 D D G 29,5 30,5 45, e h L ,9 40,5 46,5 55,4 63,9 L 7 25,8 29,7 38,7 43,5 48,9 53,9 57, l ) ) 50 4) ) 40 5) 5) 20 7) 55 6) 35 7) _ 8) 75 6) 55 7) 25 8) 70 9) 40 8) _ 0) l 8 2, M n , ,5 n , ) above Ø d 4 to 4 2) above Ø d 4 over 4 3) From 7 on, the installation of a key in the driver flange is necessary in order to ensure torque transmission. [mm] 8 9 O P 70 79,7 98,2 5,4 50,4 89,4 235,8 p s 2 3 x M4 3 x M5 3 x M5 3 x M6 3 x M8 3 x M8 3 x M8 U u 2 2,5 2,5 2,5 3 4,5 6 W 7,5 9 24, Key X 3) 6x6 x6 6x6 x8 8x7 x22 0x8 x25 0x8 x28 4x9 x32 6x0 x36 x 3,5 3, ,5 6 Y [ ] ,5 52, Y 2 [ ] We reserve the right to make dimensional and constructional alterations. 2
22 e Technical Explanations ROBATIC -electromagnetic clutch Installation Guidelines a e V Fig. Fig a 0,2 +0, -0,05 0,2 +0,5-0,05 0,2 +0,5-0,05 0,3 +0,5-0,05 0,3 +0,5-0,05 0,5 +0,5-0, 0,5 +0,5-0, e 0,25 0,3 0,2 0,35 0,5 0,55 0,6 8 9 V 0,05 0,05 0,05 0,05 0, 0, 0, Table 2 Permitted shaft misalignments Table Adjustment of the air gaps The dimension a (Fig. ) must be adjusted according to Table. Please ensure that the shaft is fastened axially, since otherwise the dimension a will change and cause the rotor to brush against the armature disk or the coil carrier. The air gap e is selected so that a brushing of the rotor against the coil carrier is not possible when keeping to the permitted centre offsets V and V (see Table ). 22 Design: ROBATIC -electromagnetic clutches are manufactured according to the electric protection IP 54 specification and the insulation material class F up to 55 C for coil, moulding compound and connection strands as well as insulation class B +30 C for the magnetic coil plastic-coated. The friction linings are asbestos-free, the surfaces of coil carrier, rotor and flange hub are phosphated. The armature disk is gas nitro-carburized and the transmission spring is made of stainless steel. The drive elements should be made of magnetically poorly transmitting material to avoid magnetic leakage flux and subsequent power reduction. ROBATIC -electromagnetic clutches are used for dry running. The torque is transmitted via the connection of the armature disk on the iron poles and the friction lining of the rotor (except the double-flow ROBATIC clutch without friction lining, Type _.0). When coupling two shafts, the eccentricity V of the shafts according to Table 2 must not be exceeded. The larger the misalignment V the more the torque decreases and the hotter the friction surface becomes. In the case of this arrangement care must be taken that both shafts have no axial backlash since, otherwise, a brushing of the rotor would also be possible. The flange hub is kept axially by means of a set screw (on set 90 to the key). The V -values are indicated again in the Technical Data of the individual clutches. Please observe: The run-in conditions or the minimum speed must be observed (see page 4). The friction surfaces have to be absolutely free of oil and grease, as otherwise, the torque drops significantly. The air gap a (Fig. ) has to be checked periodically. The clutch does not function correctly, if the max. working air gap is exceeded (see Table 4, page 25). Assembly and maintenance should be carried out by well trained specialists.
23 Technical Explanations ROBATIC -electromagnetic clutch Clutch size calculation Formulas. Drive torque M A 9550 x P A [Nm] n 2. Required torque M req. K x M A [Nm] 3. Switchable torque of the clutch (acc. to diagram, page 24) M S M req. [Nm] 4. Mass moment of inertia I I own + I add. [kgm 2 ] 5. Acceleration torque of the clutch M a M S M L [Nm] 6. Acceleration time t a I x n 9,55 x M a + t [sec] 7. Max. switching frequency per hour (dependent on time) S h max t vm + (t a + t 2 ) x,2 x 3600 [h - ] Key: P A [kw] drive power M A [Nm] drive torque M a [Nm] acceleration torque of the clutch M req. [Nm] required torque M L [Nm] load torque (+ drop load) (- lift load) M S [Nm] switchable torque of the clutch (diagram, page 24) n [rpm] drive speed K safety factor > 2 I [kgm 2 ] mass moment of inertia I own [kgm 2 ] own mass moment of inertia ( Technical data ) I add. [kgm 2 ] additional mass moment of inertia t a [sec] acceleration time t vm [sec] braking time of the machine t [sec] switch-on time of the clutch Table 3, t 2 [sec] switch-off time of the clutch page 25 S h max [h - ] max. switching frequency per hour (dependent on time) Q tot. [J] total friction work (acc. Table 4, page 25) Q a [J] total friction work per acceleration Q E [J] perm. friction work for single switching Table 4, Q [J/mm] friction work until mm wear page 25 Z n Z number of switchings until re-adjustment number of switchings until wear limit a [mm] nominal air gap Table 4, a n [mm] max. working air gap page Friction work per acceleration I x n 2 M s Q a x 82,4 M a [J] 9. Examination of the selected clutch size in diagram 2 (page 24 friction power diagram). Intersection friction work / switching frequency must be below the friction power curve! If it is above, the next size has to be selected and re-calculated from point 3 on. Q a < Q E [J] 0. Number of switchings until re-adjustment Z n Q x (a - a) [-] n Q a. Number of switchings until wear limit Z Q tot. [-] Q a 23
24 Technical Explanations ROBATIC -electromagnetic clutch Calculation example Data: Input power P A 3 kw Input speed n 400 rpm Load torque output M L 5 Nm Additional mass moment of inertia I add. 0,5 kgm² Braking time of the machine t vm,5 [sec] 80 switchings per hour 000 Switchable torque Drive torque 9550 x P A 9550 x 3 M A 20,5 [Nm] n 400 Required torque M req. K x M A 2 x 20,5 4 [Nm] Determined clutch size (acc. to diagram ) 6 M S M req. 47 [Nm] Selected clutch 6, type ** Switchable torque M s [Nm] 00 0 Mass moment of inertia I I own + I add. 0, ,5 0,5756 [kgm²] Acceleration torque of the clutch M a M S - M L [Nm] Acceleration time of the clutch t a I x n + t * 0,5756 x ,5 0,845 [sec] 9,55 x M a 9,55 x 32 * Switching times t and t 2 from Table 3, page 25 without overexcitation Max. switching frequency per hour S h max S h max t vm + (t a + t 2 *) x,2,5 + (0, ,060) x,2 Friction work per acceleration Q a Q a I x n 2 M S x 82,4 M a 0,5756 x x 82,4 32 x 3600 x [h - ] 2395 [J] Q E The point of intersection determined in diagram 2 must be located in or under the characteristic curve of the selected clutch. Switching frequency: 80 switchings per hour permitted Number of switchings until adjustment Z n Q Q a x (a n - a) Speed n [rpm] Diagram (not valid for Type _) Q a Switching work [J] Friction power diagram valid for speed 500 rpm ** Friction surfaces have been run in Calculation example 24 Z n 57 x 07 x (,2-0,3) 2496 switchings 2395 Number of switchings until wear limit Z Q tot. 00 x switchings Q a Switching frequency S h [h - ] Diagram 2 (not valid for Type _)
25 Technical Explanations ROBATIC -electromagnetic clutch Switching times The switching times stated in Table 3 have been determined by comprehensive series of tests. They are valid for switching DC-side with nominal air gap and warm coil. Deviations depend on the respective installation situation, ambient temperatures, release path and the type of rectification with which the corresponding clutch is operated. Switching times 8 9 t [sec] 0,00 0,05 0,020 0,030 0,045 0,050 0,060 Without Type 500. _._ t overexcitation [sec] 0,045 0,065 0,080 0,50 0,200 0,350 0,400 t 2 [sec] 0,02 0,020 0,045 0,060 0,090 0,095 0,30 With Type 500. _._ t [sec] 0,003 0,005 0,007 0,00 0,05 0,020 0,035 overexcitation t [sec] 0,025 0,035 0,040 0,075 0,00 0,70 0,235 t [sec] 0,00 0,02 0,02 0,020 0,025 0,050 0,060 Without Type 540. _._ t overexcitation [sec] 0,050 0,072 0,2 0,60 0,200 0,350 0,460 t 2 [sec] 0,04 0,020 0,030 0,050 0,075 0,095 0,30 With overexcitation Without overexcitation With overexcitation Table 3 Type 540. _._ t [sec] 0,004 0,005 0,006 0,00 0,03 0,020 0,035 t [sec] 0,024 0,035 0,056 0,080 0,00 0,70 0,235 t [sec] 0,07 0,026 0,035 0,052 0, Type _ t [sec] 0,079 0,3 0,40 0,262 0, t 2 [sec] 0,00 0,06 0,036 0,048 0, Type _ t [sec] 0,005 0,009 0,02 0,07 0, t [sec] 0,044 0,06 0,070 0,3 0, M Key: P ON M 2 M L t t 3 t t 2 t a 0, M 2 t M 2 M L P t a t t t 2 t 3 Nominal torque of the clutch Load torque of the drive Electrical power Acceleration time Connection time Response delay on connection Disconnection time Slip time OFF t Diagram 3: Torque-time Friction work ) and air gap Friction work up to mm wear Total friction work 8 9 Type 500. _._ Q [0 7 J/mm] 2, Type 540. _._ Q [0 7 J/mm] 8,8 3, Type 500. _._ Q tot. [0 7 J] 2, Type 540. _._ Q tot. [0 7 J] Permitted friction work with a single switching Q E [0 3 J] 3,8 6, Nominal air gap a [mm] 0,2 0,2 0,2 0,3 0,3 0,5 0,5 Max. working air gap a n [mm] 0,6 0,8,0,2,5,8 2,0 Table 4 ) The friction work data are not valid for Type _.0 double-flow design. Please Observe! Wear values can only be recommended values due to operating parameters, such as sliding speed, pressing or temperature. 25
26 Application Rectifiers are used to connect DC consumers to alternating voltage supplies, for example electromagnetic brakes and clutches (ROBA-stop, ROBA-quick, ROBATIC ), electromagnets, electrovalves, contactors, switch-on safe DC motors, etc. Function The AC input voltage (VAC) is rectified (VDC) in order to operate DC voltage units. Also, voltage peaks, which occur when switching off inductive loads and which may cause damage to insulation and contacts, are limited and the contact load reduced. Half-wave Rectifiers and Bridge Rectifiers Type 02_ Electrical Connection (Terminals) + 2 Input voltage Connection for an external switch for DC-side switching Coil 7-0 Free nc terminals (only for 2) (mm) ØD A C E 9 5 Order Number B / up to Half-wave rectifier Bridge rectifier A B C ØD E ,5 4, ,5 5,0 3/ ,5 5,0 Accessories: Mounting bracket set for 35 mm rail acc. EN 6075: Article-No Technical Data Bridge rectifier Half-wave rectifier Calculation output voltage VDC VAC x 0,9 VDC VAC x 0,45 Type /025 2/025 /024 2/024 3/024 4/024 Max. input voltage ± 0 % U AC [VAC] Max. output voltage U DC [VDC] Output current at 50 C I RMS [A] 2,5 2,5 3,0 4,0 4,0 4,0 max. 85 C I RMS [A],7,7,8 2,4 2,4 2,4 Max. coil nominal capacity at U AC 5 VAC 50 C P nom [W] up to 85 C P nom [W] U AC 230 VAC 50 C P nom [W] up to 85 C P nom [W] U AC 400 VAC 50 C P nom [W] up to 85 C P nom [W] U AC 500 VAC 50 C P nom [W] up to 85 C P nom [W] U AC 600 VAC 50 C P nom [W] up to 85 C P nom [W] Peak reverse voltage [V] Rated insulation voltage U RMS [V RMS] Pollution degree (insulation coordination) Device fuses To be included in the input voltage line. Recommended microfuse switching capacity H The microfuse corresponds to the max. possible connection capacity. If fuses are used corresponding to the actual capacities, FF 3,5 A FF 3,5 A FF 4 A FF 5 A FF 5 A FF 5 A the permitted limit integral I²t must be observed on selection. Permitted limit integral l 2 t [A 2 s] Protection IP65 components, encapsulated / IP20 terminals Terminals Cross-section 0,4 -,5 mm 2 (AWG 26-4) Ambient temperature [ C] - 25 up to + 85 Storage temperature [ C] - 25 up to + 05 Conformity markings UL, CE UL, CE UL, CE UL, CE UL, CE CE The installation position can be user-defined. Please ensure sufficient Installation conditions heat dissipation and air convection! Do not install near to sources of intense heat!
27 Spark Quenching Unit Type Application Reduces spark production on the switching contacts occurring during DC-side switching-off of inductive loads. Voltage limitation according to VDE , Item 4.6. Reduction of EMC-disturbance by voltage rise limitation, suppression of switching sparks. Reduction of brake engagement times by a factor of 2-4 compared to free-wheeling diodes. Function The spark quenching unit will absorb voltage peaks resulting from inductive load switching, which can cause damage to insulation and contacts. It limits these to 70 V and reduces the contact load. Switching products with a contact opening distance of > 3 mm are suitable for this purpose. Electrical Connection (Terminals) (mm) (+) Input voltage 2 ( ) Input voltage 3 ( ) Coil 4 (+) Coil 5 Free nc terminal 6 Free nc terminal Ø3, ,5 9 5 Technical Data 30 Input voltage max. 300 VDC, max. 65 V peak (rectified voltage 400 VAC, 50 / 60 Hz) Switch-off energy max. 9 J / 2 ms Power dissipation max. 0, Watt Max. voltage nc terminals 250 V Protection IP65 / IP20 terminals Ambient temperature -25 C up to +85 C Storage temperature -25 C up to +05 C Max. conductor connection diameter 2,5 mm 2 / AWG 26-2 Max. terminal tightening torque 0,5 Nm Accessories Mounting bracket set for 35 mm rail acc. EN 6075: Article-No Order Number /
28 ROBA -quick electromagnetic brake Exact positioning over the entire service lifetime High torque security due to an optimised magnetic circuit and new design of the ROBA -quick. Therefore higher capacities due to less magnetic leakage flux. Exact positioning until wear limit ideal for positioning operations Large internal diameters of the magnetic coil bodies Therefore large permitted shaft diameters and few magnetic field losses Low noise Short switching times/high switching frequency wear, air gap max. adjusting interval wear, air gap max. adjusting interval conventional electromagnetic brakes number of switchings ROBA -quick number of switchings Functional principle ROBA -quick are energise to engage, electromagnetic pole face brakes. When DC voltage is applied to the magnetic coil (), a magnetic field is built up. The armature disk (3) is attracted to the brake coil carrier with friction lining (4). The brake torque runs from the coil carrier (2) via friction lining (4), armature disk (3) and membrane transmission spring (5) to the flange (6) and the shaft. If the magnetic coil is de-energised, the membrane transmission spring (5) draws the armature disk (3) back to the flange (6). The brake is released and the shaft (7) can run freely
29 ROBA -quick electromagnetic brake Summary of structural designs ROBA -quick ROBA -quick standard s 3 to 7 Type _.0 without accessories Type flange hub Type internal hub Type Pages 30 3 ROBA -quick standard s 8 to 9 Type 520._0 without accessories Type flange hub Type internal hub Type Pages ROBA -quick small mounting diameter s 3 to 7 Type 520.2_.0 without accessories Type flange hub Type internal hub Type Pages
30 ROBA -quick electromagnetic brake Standard s 3 7 Type _.0 L O ØH ØM ØZ Øs l z a t ØG Øs ØM ØD L2 W l 2 O 2 Ød Øg ØD 2 Øg n 2 L 2 Ød ØK ØD 2 V V strand length: 400 mm; 45º offset to screw-on bores b t k Type Standard Type Standard with flange hub Type Standard with internal hub Order Number / / / / s 3 to 7 without accessories flange hub internal hub 0 2 Coil voltage [VDC] Hub * bore Ø d H7 Keyway * acc. DIN 6885/ or DIN 6885/3 Example: 5 / / 24 / 30 / DIN 6885/ * Indication only with flange hub design or internal hub design. 30
31 ROBA -quick electromagnetic brake Standard s 3 7 Type _.0 Technical Data Nominal torque ) Type _.0 M 2 [Nm] 8, Electrical power P 20 [W] Maximum speed n max [rpm] Weight Mass moment of inertia without accessories m [kg] 0,38 0,55,25,88 3,5 with flange hub m [kg] 0,42 0,86,40 2,35 7,5 Armature disk I own [0-4 kgm 2 ] 0,76,92 6,86 7,56 52,86 Flange hub 2) + Armature disk I own [0-4 kgm 2 ],02 2,75 8,63 24,66 70,63 ) Please observe run-in regulations or minimum speed (see page 4). 2) With max. bore Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores Ød H7 Preferred bores [mm] 7; 20 20; 25 25; 30 30; 40 40; 50 min. [mm] max. [mm] ) ) Up to Ø 32 keyway acc. DIN 6885/, above Ø 32 keyway acc. DIN 6885/3 [mm] a 0,2 0,2 0,2 0,3 0,3 b 4,5 4 5,5 5,5 7,5 D 73, D G , g 29, H h K 3 x 4,5 3 x 5,5 3 x 6,6 3 x 8,7 3 x 8,8 k,6,7,7 2,2 2,2 L 22, 24,7 28, 3,4 34,7 L l 3,5 4,3 5,2 6 7 l M [mm] Permitted shaft misalignm. and centre offset M n 2 2,6 3,2, 0,3,7 O 42, 46,7 56, 63,4 70,7 O 2 26, 29,7 34, 38,3 43,7 s 4 x 4,8 4 x 5,7 4 x 6,8 4 x 6,8 4 x 9,2 s 3 x M4 3 x M5 3 x M6 3 x M8 3 x M8 t 3,9 4,5 5,8 7, 8,3 t 5,2 7,2 8,7 8,0 9,7 V 0,05 0,05 0,05 0,05 0, V 0, 0,5 0,5 0,5 0,2 W Z H z 3,5 4, We reserve the right to make dimensional and constructional alterations. 3
32 ROBA -quick electromagnetic brake Standard s 8 9 Type 520._0 strand length: 400 mm; 45º offset to screw-on bores b l 7 L 6 a O 2 O 3 k ØK W L 2 ØH ØM ØZ Øf ØG ØM ØD V Øs Ød Øg ØD 2 Øg Ød ØD 2 n 2 l 2 V Øs l 4 t L 2 V Type Standard Type Standard with flange hub Type Standard with internal hub Order Number / / / 8 9 without accessories flange hub internal hub 0 2 Coil voltage [VDC] Hub * bore Ø d H7 Example: 8 / / 24 / 40 * Indication only with flange hub design or internal hub design. 32
33 ROBA -quick electromagnetic brake Standard s 8 9 Type 520._0 Technical Data 8 9 Nominal torque ) Type 520. _0 M 2 [Nm] Electrical power P 20 [W] Maximum speed n max [rpm] Weight Mass moment of inertia without accessories m [kg] 5,64 6,90 with flange hub m [kg] 3,9 5,63 Armature disk I own [0-4 kgm 2 ] 8 35 Flange hub 2) + Armature disk I own [0-4 kgm 2 ] ) Please observe run-in regulations or minimum speed (see page 4). 2) With max. bore Standard voltages 24; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores Ød H7 8 9 Preferred bores [mm] 40; 50 50; 60 min. [mm] max. [mm] [mm] 8 9 a 0,5 0,5 b 6 6 D D f 92 2 G 9 g H h K 3 x,5 4 x 20 k 2 4,2 L 2 45,3 53,9 L 6 40, 47,9 l 2 36,3 42,9 l [mm] Permitted shaft misalignm. and centre offset 8 9 l M M n 2 0,8,0 O 2 86,4 0,8 O 3 50, 58,9 s 4 x 9 4 x s 3 x M0 4 x M2 t 8,5,8 V 0, 0, V 0,2 0,25 W 5 20 Z H z 4 4 We reserve the right to make dimensional and constructional alterations. 33
34 ROBA -quick electromagnetic brake Small mounting diameter s 3 7 Type 520.2_.0 L O l a L 2 l2 O 2 L2 t ØH ØM ØZ Øs ØG Øs ØM ØD W Ød Øg ØD 2 Øg Ød ØD 2 z n 2 V ØK V strand length: b t 400 mm; 45º offset to screw-on bores k Type Small mounting diameter Type Small mounting diameter and flange hub Type Small mounting diameter and internal hub Order Number / / / / s 3 to 7 without accessories flange hub internal hub 0 2 Coil voltage [VDC] Hub * bore Ø d H7 Keyway * acc. DIN 6885/ or DIN 6885/3 Example: 6 / / 24 / 35 / DIN 6885/3 * Indication only with flange hub design or internal hub design. 34
35 ROBA -quick electromagnetic brake Small mounting diameter s 3 7 Type 520.2_.0 Technical Data Nominal torque ) Type 520.2_.0 M 2 [Nm] 8, Electrical power P 20 [W] Maximum speed n max [rpm] Weight Mass moment of inertia without accessories m [kg] 0,35 0,58,2,8 3,3 with flange hub m [kg] 0,4 0,65,35 2 3,85 Armature disk I own [0-4 kgm 2 ] 0,7,79 6,28 5,77 48, Flange hub 2) + Armature disk I own [0-4 kgm 2 ] 0,8,97 7,9 7,54 55,2 ) Please observe run-in regulations or minimum speed (see page 4). 2) With max. bore Standard voltages 24 VDC; 04 VDC. Permitted voltage tolerances acc. IEC 38 +/-0 %. Bores Ød H7 Preferred bores [mm] 0; 5 7; 20 20; 25 25; 30 30; 40 min. [mm] max. [mm] ) 45 3) Up to Ø 32 keyway acc. DIN 6885/, above Ø 32 keyway acc. DIN 6885/3 [mm] a 0,2 0,2 0,2 0,3 0,3 b 4,5 4 5,5 5,5 7,5 D 73, D G , g 27 29, H h K 3 x 3,5 3 x 4,5 3 x 5,5 3 x 6,6 3 x 8,8 k,6,7 2,3 2,7 2,7 L 22, 24,6 28, 30,9 34,4 L l 3,5 4,3 5,2 6 7 l 2, M [mm] Permitted shaft misalignm. and centre offset M n 2 8,5 6, 7,9 5,5 5,7 O 37, 44,6 50, 58,9 66,4 O 2 25,6 28,6 33, 36,9 4,4 s 4 x 4,8 4 x 5,7 4 x 6,8 4 x 6,8 4 x 9,2 s 3 x M3 3 x M4 3 x M5 3 x M6 3 x M8 t 3,9 4,4 5,9 6,6 8, t 4,0 5,2 6,7 8,7 8,2 V 0,05 0,05 0,05 0,05 0, V 0, 0,5 0,5 0,5 0,2 W Z H z 2 2,5 3 3,5 3,5 We reserve the right to make dimensional and constructional alterations. 35
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